Nostalrius Begins - Quality wow vanilla realm (1.12)

Hi guys,

the quest "Missing in action" is bugged for me.
I finished it but now I can click on the questreward and want to press "complete" the success sound appears but no xp or item is handed to me.
What can I do? I cant abandon and retake and just hand quest items because the questgiver is the escort guy Keeshan. Pls help.

Sincerely,

Eickhorn

Im having the exact same problem right now. DId the entire escort quest and I have the complete quest window, but when I choose a reward and press complete quest nothing happens, I get no item or xp. Same thing happened to atleast 2 other people in the group, there was a fourth but I dont know whether it worked for him or not.
Character: fågel

I found the answer:
Somebody else took the quest while yu were in the questscreen. But the other prson wasnt in oyur group. You are still able to start the quest but the progress doenst count towards your quest but to the others groups. :/